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Finding the Fourth Proportional to 102,607.92, 141,601.32 and 64,369.08

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Solution

The fourth proportional to 102,607.92, 141,601.32 and 64,369.08 is: 88,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,607.92 : 141,601.32 = 64,369.08 : x
  2. Step 2: Convert to fraction form
    102,607.92/141,601.32 = 64,369.08/x
  3. Step 3: Cross multiply
    102,607.92x = 141,601.32 × 64,369.08
  4. Step 4: Simplify right side
    102,607.92x = 9,114,746,695.19
  5. Step 5: Solve for x
    x = 9,114,746,695.19/102,607.92
  6. Step 6: Final answer
    x = 88,830.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.